If the lines x + q = 0, y – 2 = 0 and 3x + 2y + 5 + 0 are concurrent, then the value of q will be

Three vertices of a parallelogram taken in order are (-1, -6), (2, -5) and (7, 2). The fourth vertex is

The centroid of a triangle is (2, 7) and two of its vertices are (4, 80 and (-2, 6). The third vertex is

The medians AD and BE of a triangle with vertices A(0, b), B(0, 0) and C(a, 0) are perpendicular to each other, if

The equation of the line with slope -3/2 and which is concurrent with the lines 4x + 3y – 7 = 0 and 8x + 5y – 1 = 0 is